Home / 75,053.24-103,658.51-51,138.40

Finding the Fourth Proportional to 75,053.24, 103,658.51 and 51,138.40

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Solution

The fourth proportional to 75,053.24, 103,658.51 and 51,138.40 is: 70,628.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,053.24 : 103,658.51 = 51,138.40 : x
  2. Step 2: Convert to fraction form
    75,053.24/103,658.51 = 51,138.40/x
  3. Step 3: Cross multiply
    75,053.24x = 103,658.51 × 51,138.40
  4. Step 4: Simplify right side
    75,053.24x = 5,300,930,347.78
  5. Step 5: Solve for x
    x = 5,300,930,347.78/75,053.24
  6. Step 6: Final answer
    x = 70,628.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.